Thermal pointcloud color palette

Hei,

Anyone has idea what kind of color palette is this?

x  y  z  ?  ?  ?

-2.984 24.482 -20.377 25344 6912 3072
-3.230 23.974 -11.233 17408 39424 4864
-7.037 24.377 -19.613 52480 3840 768

Exported from BCC as Thermal coloring from thermal picture block.